Career
That was the first time he qualified for the Olympic team winning the Olympic Trials. In Munich that year he was third in the Olympics behind youngster Randy Williams who was setting the still standing World Junior Record in the long jump. In 1976, he bested Williams in both the Olympic Trials and the Olympics, taking home the Gold Medal and a career best 8.35m jump.
In 1977, his National Championship qualified him to go to the first ever World Cup meet in Düsseldorf, where he again took home Gold.
In 2000, Robinson was elected into the USATF National Track and Field Hall of Fame. Earlier that year, he was seriously injured in an auto accident.
As of 2005, he was teaching physical education courses at Mesa College in San Diego. He was previously the head track coach at Mesa College, starting in 1982.
On April 13, 2013, San Diego Mesa College honored the Olympian Long Jumper by naming their Invitational (Arnie Robinson Invite hosted in San Diego at Mesa College) after him, and presenting him with an award.